The goal for this tweeter series was to create a transducer that has a frequency response that is flat to above 20K, and where the distortion is far lower than normal and more friendly to the ear. The tweeters represent a unique approach to tweeter design that has resulted in unrivaled performance, as well as in several patents (Dual Ring Radiator diaphragm, wave-guide center plug). Driver Highlights: Dual Ring Radiator diaphragm (Patent), Waveguide center plug (Patent), copper-clad aluwire